Improvement in flour-bolting machines



/ s sheets-sheen.

A F. F'EISTEL. FLOUR-BOLTING MACHINE. N 190,20@ Patented May`1','18`77.

Tay-Z N. PETERS. PHOYOLITHOGRAPHER, WASHINGTON. D C.

BSheets-Sheet 2. F. FEISTEL.

FLOUR-BOLTING MACHINE.

N 190,202, Patented May1,18'77.

MPEFERS, FHOTO-LITHOGRLPHER; WASFHNGTON. D C,

l 3 Sheets-'Sheet- 3. F. FEISTEL.

' FLoUR-BOLTING MACHINE. Na. 190.202. Patented May1,1877.

Juf/venan? N,FETERS, PQIOTULTHOGRAPHER, WASHINGTON, D C.

y To all whom4 it may concern:

Be it knowntha't I, FERDINAND FEIsTEL,re-` siding at Berlin, Prussia, havev invented cer-f tainl Improvements in Flour- Dressing Ma-z chine, of which the fcllowingisa specitication l rlhe object of the presentin vention'is tocon structa flour-dressing machine in which the UNITED STATES 'PATENT Ormea FERDINAND FEISTEL, OF BERLIN, PRUS'SIA.

: I Specification forming part of LettersfPatentNo. 190,202, dated.May1,v1877 :application tiled March v31, 1877.

different grades 'of flour and the middlings areseparated from the offal or bran fin a perfect and simple `manner without `causing the entire mass of meal orchop77A from the stones to enter the gauze-covered bolting-reel.

The invention consists in the combination of an inner reticulated cylinder, made of wiregauze or foraminous metal, an outer gauzecovered bolting frame or cylinder, and two sets of beaters, located one inside the inner cylinder and the other between the latter and the outer bolt. The meal or chop from the stones or mill enters the inner cylinder, and the beaters revolving therein serve to agitate the mass, so as to cause the different grades of our and fine middlings to pass into the outer or surrounding` bolt, where the Hour is acted upon by the beaters and separators according to grade. The ofal and bran pass out at the tail-end of the inner cylinder, and the coarse middlings are sifted through an end section of said cylinder.

The invention also consists in other minor details of construction, which will be hereinafter more fully described.

In the accompanying drawin gs,formin g part of this specification, Figure 1 is a longitudinal vertical section of a flour-dressing machine constructed according to my invention. Fig. 2 is a transverse section of the same. Fig. 3 is an enlarged sectional View of one end portion of the machine.

The frame of the machine, which is denoted by the letter A, supports a stationary ganzecovered bolting frame or cylinder, B, the bolting cloth or covering of which is of di'erent grades of fineness, the meshes at the reception end being closer than toward the discharge. Below the bolt B are located hoppers or spout-s O, which receive the diierent grades of our sifted through at the dierent portions of the length of the bolt, and serve to deliver the same into bags or conductor trunks or tubes. Inside the bolting-cylinder B is arranged an i linner reticulated cylinder, D, made r.generally of foraininousinetal ior wiregauze,.and firmly l'secured to one end of the'frame ofthe machine of-the frame, and carriesaseries ofiobliqucly or spirally arranged beater-plates, F, which arefadjustably securedto collars a cn the shaft 'by means of vscrew stems and `.nutsb c. lThe revolving shaft E carries au end plate,.G, which is formed with a hub shaped portion, H, encircling the shaft and attached thereto. Passages I are made through this hub-shaped portion of the end plate G, for the purpose of conducting the meal or chop, as it comes from the mill or stones, into the reticulated cylin` der, where it is subjected to the action of the beaters revolving therein, for sifting the different grades of iour and tine middlings through said reticulated cylinder, While the oii'al and bran pass out through a spout, J, in the closed end wall ofthe reticulated cylinderat the tail-end of the machine. The end portion K of said cylinder is made with larger holes than the remaining portion, so as to permit the coarse middlings to pass through the saine into a discharge-spout, L. rI he chop or meal is fed into a receivinghopper, M, which contains a screw, N, for feeding the mass into the reticulated cylinder D. The feed-screw is fixed on the revolving beater-shaft, so as to turn therewith. To the inner side o'fend plate G is attached a ring, 0, which is armed with brushes or bristles P, that run in contact with the vertical portion of a tlanged end cap, Q, applied to the inner reticulated cylinder. thereby preventing the passage of the meal or chop into the outer bolting cylinder. The end plate G extends nearly to the inner surface of said outer bolting-cylinder, and has attached to it near its outer portion beaters R, which are attached at their opposite ends to a ring, S, encircling the reticulated inner cylinder D. These beaters are also arranged diagonally or spirally, and serve to act upon the mass sifted through the inner cylinder, for agitating the same, and causing it to be uniformly distributed over the entire inside area of the boltingcylinder, so as to be siftcd through the same.

The middlings or ne stuff which cannot pass through the bolting-cloth is discharged through an opening, S, at the tail-end of the inders can be employed so as to cause an inner cylinder to serve as a separating and distributing cylinder for one surroundingthe same.

I do not claim, broadly, the combination'ofl an inner perforated cylinder or shaft with a bolting-reel for receiving the chop or meal and separating the bran and coarse matters.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, in a flour-dressing machine, of an inner distributing and separating cylinder, au outer bolting-cylinder, an inner set of revolving beaters, and an outer set of beaters revolving around the inner cylinder or within the bolting-cylinder, substantially as and for the purpose set forth.

2. The combination of the revolving shaft E, end plate G, having hub 'portion H, with openings I therein, and the outer set of beaters R, attached to said end plate, with the bolting-cylinder B, inner separating-cylinder D, and feeding-hopper M, as and for the purpose set forth.

3. The combination of the ring-brush 0 P with the end plate Gr and the inner cylinder D, having end cap Q, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' FERDINAND FEISTEL.

Witnesses:

` GERARD WENoEsLAUs v. NAWBooKr,

M. BECKER. 

